/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.artemis.audit.legacy;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.hisp.dhis.audit.AuditScope;
import org.hisp.dhis.audit.AuditType;
import org.hisp.dhis.commons.util.DebugUtils;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Component;

/**
 * A factory for constructing {@see org.hisp.dhis.audit.Audit} data payloads. This can be the object
 * itself (as is the case for metadata), or it can be a wrapper object collecting the parts wanted.
 *
 * @author Luciano Fiandesio
 */
@Slf4j
@RequiredArgsConstructor
@Component
public class DefaultAuditObjectFactory implements AuditObjectFactory {
  @Qualifier("hibernateAwareJsonMapper")
  private final ObjectMapper objectMapper;

  @Override
  public Object create(AuditScope auditScope, AuditType auditType, Object object, String user) {
    switch (auditScope) {
      case METADATA:
        return handleMetadataAudit(object);
      case TRACKER:
        return handleTracker(object);
      case AGGREGATE:
        return handleAggregate(object);
    }
    return null;
  }

  private String handleTracker(Object object) {
    return toJson(object);
  }

  private String handleAggregate(Object object) {
    return toJson(object);
  }

  private String handleMetadataAudit(Object object) {
    return toJson(object);
  }

  private String toJson(Object object) {
    try {
      return objectMapper.writeValueAsString(object);
    } catch (JsonProcessingException e) {
      log.error(DebugUtils.getStackTrace(e));
    }
    return null;
  }
}
